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Effects of tungsten on the hydrogen embrittlement behaviour of microalloyed steels

Journal Article


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Abstract


  • The effects of tungsten (W) additions (0, 0.1, 0.5 and 1 wt.%) on the hydrogen embrittlement behaviour of microalloyed steels were systematically investigated by means of slow strain rate tests on circumferentially notched cylindrical specimens, and the mechanism of hydrogen-induced embrittlement was discussed. W addition is found to increase the activation energy of hydrogen desorption. Microstructural features affect the hydrogen embrittlement behaviour and fracture modes of microalloyed steels. It is suggested that the hydrogen-induced embrittlement in the studied microalloyed steels with different W additions is caused by the combined effects of decohesion and internal pressure in the presence of hydrogen.

Publication Date


  • 2014

Citation


  • Zhao, J., Jiang, Z. & Lee, C. Soo. (2014). Effects of tungsten on the hydrogen embrittlement behaviour of microalloyed steels. Corrosion Science, 82 380-391.

Scopus Eid


  • 2-s2.0-84894723805

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3960&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2951

Number Of Pages


  • 11

Start Page


  • 380

End Page


  • 391

Volume


  • 82

Abstract


  • The effects of tungsten (W) additions (0, 0.1, 0.5 and 1 wt.%) on the hydrogen embrittlement behaviour of microalloyed steels were systematically investigated by means of slow strain rate tests on circumferentially notched cylindrical specimens, and the mechanism of hydrogen-induced embrittlement was discussed. W addition is found to increase the activation energy of hydrogen desorption. Microstructural features affect the hydrogen embrittlement behaviour and fracture modes of microalloyed steels. It is suggested that the hydrogen-induced embrittlement in the studied microalloyed steels with different W additions is caused by the combined effects of decohesion and internal pressure in the presence of hydrogen.

Publication Date


  • 2014

Citation


  • Zhao, J., Jiang, Z. & Lee, C. Soo. (2014). Effects of tungsten on the hydrogen embrittlement behaviour of microalloyed steels. Corrosion Science, 82 380-391.

Scopus Eid


  • 2-s2.0-84894723805

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3960&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/2951

Number Of Pages


  • 11

Start Page


  • 380

End Page


  • 391

Volume


  • 82